Range extender device

FIG. 1 is a front perspective view of a range extender device;

FIG. 2 is a back perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a right-side view thereof;

FIG. 7 is a back view thereof; and,

FIG. 8 is a front view thereof.

The broken lines depict portions of the range extender device that form no part of the claimed design.